P0700-- Transmission Control System Malfunction - Diesel Place : Chevrolet and GMC Diesel Truck Forums
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Old 12-14-2009, 11:04 AM   #1 (permalink)
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P0700-- Transmission Control System Malfunction

I had this code come up over the weekend.....anyone know how to fix it.... truck was driving like i had the towhaul button on...staying in each gear longer before upshifts...i cleared the tune and loaded another and it went away..... but it still shows up on diagnostics even tho it shifts fine????
2006 CHEV Silv 2500HD CCSB LLY Silver Streak II
18" KMC XD HOSS795- 325/60/18 Nitto Terra Grapplers, MBRP 4" PLM 6" Chrome TIP, PREDATOR 120HP, BLOCKED AND FINGERED, ISSPRO pillar gauges, stainless nerf bars, Tuff Tonneau Cover, Silverstar Ultra x2 highs/lows, sirius , leveling kit, pcv reroute, Billet Bowtie, billet grille,putco chrome handles, debadged, touchscreen 3.5" gps, white face gauges, smoked tails- PPE boost controller
2007 GMC Sierra 2500HD ECSB Silver Streak
daily driver- 3/2 lift, BFG MT KM2 285/16 's, ranchos, chrome handles, stainless nerfs, optima redtop, Precision billet grille, bluetooth w/ cradle and booster
2009 YAMAHA YFZ450R x2

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Old 12-14-2009, 12:07 PM   #2 (permalink)
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P0700 does not say what is wrong. P0700 is stored in the PCM to alert a technician that there are codes presently stored in the TCM. You need to have the TCM codes read in order to determine what is causing the P0700 code to be stored in the PCM.
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